Domestic terminal checkpoints are busiest weekday mornings from 6 a.m. to 9 a.m. In the International Terminal, the A gates (One World, etc.) are busiest from noon to 3 p.m.

Workarounds: Terminal 2 (Virgin America and American Airlines) is connected with Terminal 1, Boarding Area C (Delta). Terminal 3 and the G-side International gates (mostly Star Alliance) are connected with a post-security corridor for easy outbound connections. The A-side International gates can only be accessed by going through security.